This formula applies one of the longevity conditions of Bama people: lung function improving method — a principle that the high content of negative oxide ions in the air makes people live long.

此配方应用了巴马人长寿条件之一：肺部功能提高法——空气中负氧离子含量高而让人长寿的原理。

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To determine the effect of negative air ions on the immunological function and their biological mechanisms, 132 healthy male mice were divided into 6 groups at random.

为探讨空气负离子对免疫功能的影响及其作用机理，用雄性小鼠132只，随机分为6组。

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The paper presented the function of negative oxygen ion, explained what the anion powder is and expound the principle in producing negative oxygen ions.

论述了负氧离子的保健功能和奇冰石复合粉产生负氧离子的原理。

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